Authors: P G Rose; B N Bundy; E B Watkins; J T Thigpen; G Deppe; M A Maiman; D L Clarke-Pearson; S Insalaco Journal: N Engl J Med Date: 1999-04-15 Impact factor: 91.245
Authors: John D Birkmeyer; Therese A Stukel; Andrea E Siewers; Philip P Goodney; David E Wennberg; F Lee Lucas Journal: N Engl J Med Date: 2003-11-27 Impact factor: 91.245